So I have 2 Turnigy Batteries that both are doing the exact same thing. After about 2 Minutes of flight they start indicating the low battery. I land and they only take about 200-300 mA to charge. Other packs I have fly just fine.This is the 3rd time I have flown with them. First time I figured user error, second time I thought fluke perhaps not cell balanced. now I have payed attention. This has happened with 2 different chargers and I have a cell checker to get the info below. Pack 12.57 Cells are at 4.198/ 4.194/ 4.187 So My question is will the Battery Calibration do any good? If other packs are working what will calibration do for these packs? I have read about the calibration and do not fully understand. So I turn to the experts what exactly will battery calibration do to help with this situation?